WBCS.LIVE practice question

A radioactive sample decays to 1/16th of its original activity in 4 hours. What is its half-life?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 1 hour
  2. 2 hours
  3. 0.5 hour
  4. 4 hours

Correct answer and explanation

Correct answer: 1 hour